I consider a line to be long when it is unable to make use of the full bandwidth that is available . . . In both our cases, our services are provisioned as ADSL2+ but neither of us can make use of sub-carriers numbered from 256 to 511. In my case I have configured the ATU-R (my modem) to operate in ADSL2 mode, not ADSL2+ mode.
The shape of your bit-loading plot is somewhat similar to that of a VDSL2 service, which will have power-shaping applied to the US0 and DS1 bands. (USPBO and DSPBO, respectively.) Again, to give you some reference, I attach my bit loading per sub-carrier plot.
Hi - OK, thanks for the info. I did read about changing to ADSL2. Tried changing it in the 7800DXL but it wouldn't establish a link. I either didn't wait long enough or there's something else I needed to do.
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